Storage battery



F" P. DANNA r STORAGE BATTERY Original Fi1ed.l

March 20, 1928.

o oo Patented Mar. 20, 1928.

UNITED STATES rrace; i

Arsi" FRANK PAUL DANNA, OF PLAQUEMINE, LOUISIANA, ASSIGNOR OF ONE-TH IRD. TO

H'D'BERT J. LAMSON, OF PLAQUEMINE, LOUISIANA.

STORAGE BATTERY.

This invention relates to storage batteries and more particular to an arrangemcnt and Construction of the platesthereot.

An important object of the invention is to provide a Construction of this character which will be very sturdy and conpact and in which it will be practieally impossible to warp, buckle or break the plates.

A further object of the invention is to provide a construetion which, in addition to preventing warping and buckling of the plates, firmly holds the plates against movement with relation to the jar, so that the chances of breakage or dislodgnent of the assenbly is materially decreased.

A further object of the invention is to provide a Construction such that loss of ac tive material from the plates and short-circuiting of the battery is prevented.

A still further object of the invention is to improve the structure illustrated in my prior application for patent on storage batteries, Serial No. 196,575, filed June 1, 1927, of which this application is a continuation.

These and other objects I attain by the Construction shown in the accompanyng drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein:-

Figure 1 is a vertical sectional View through a single cell embodying plate units constructed in accordance with my invention;

Figure 2 is a section on the line 2-2 ot Figura 1.

Referring now more particularly to the drawings, the numeral 10 designates the jar which may be of any usual or preferred construction and includes the usual transversely extending legs 11 projecting upwardly from its bottom to maintain the plate assembly in spaced relation thereto. Each plate assembly includes a strap 12, which extends' vertieally instead of horizontally, as in the ordinary storage battery Construction and which has burned thereto a series of plates 13, which extend horizontally, the plates of one strap beingstaggered With relation to the plates of the other strap, so that they may interdigitate to produce the plate assembly. Between adjacent faces of each pair of plates, a Separator 14 is arranged. The plates 13 andseparators 14: are for-med at their centers with openings, designated This application filed August 11,

preferred Construction, With the eXception of the fact thateach plate is provided at its opposite ends with spaced ears 19 which are apertured at 20 for the passage of vertically extending insulated rods 21. 'The rods 21 are provided at their upper ends with polygonal heads 22 pernitting application ot' a wrench thereto and at their lower ends are threaded for engagement in threaded sockets 23 produced in two of the legs 11 which align with the ears 19.

It will be obvious that by providing a compact structure of this character, the loss ot' n'ateri'al from the plates will be greatly reduced and the probability of short circuits occurring in the battery, due to warping of the plates, will be practically eliminated. Since the threaded rods, in addition to preventing separation of the plates, firmly hold the plate assembly to the battery jar and against either vertical or transverse novenent therein, it will be obvious that vbreakage of the straps or ot' the jar top,

which often results where the usual battery construction is subjected' to heavy jolts and Since the Construction hereinbeore set forth is capable of a certain range of change and modification without materially departing from the spiritof the' invention, I do not' limit myself to such specific structure except as hereinafter claimed.

I claim 1. In a storage battery, a cell, a plate group comprsing positive and negative connection straps extending vertically, horizontally disposed plates carried by said Straps and interdigitating inthe assembled relation thereof, separators between adjacent faces of the plates, said plates having apertures at the corners thereof and insulated rods extended through said apertures threaded'at their lower ends for engagenent in the cell bottom and at their upper ends having heads for engagenent with the upper-most plate and an electrolyte within the cell and surrounding said plates.

2. In a storage hattery', a cell containing an electrolyte, a plate group con'prsing' positive and negative connection straps extending vertically, horizontally disposed plates earried by said straps and intel-digitating in the' assemhled relation thereof, separator s between adjacent faces of the plate, said plates having apertures at the corners thereof and insulated rods extended through said apertures threaded at their lowerends for engagen'ent in the cell bottom and'at their upper ends having heads for engagenient with the uppernost plate, a cover for the cell having an aperture and aligning openings forned in said plates and separators and conbining to produee a well underlying the aperture of the cap and open at its opposte ends to pernit crculation' of the electrolyte therethrough.

3. In a storage battery, a cell, a plate group conprising positive and negative connection straps extending vertically, horizontally disposed plates carr-ed" by said sti-ups and interdigitating in the assenbled relation thereof, separators between adjaa cent faces of the plates, and means engaging said plate group at each eorner of the plates thereof and Secured at its lower end to' the cell bottom' preventing `sepamtion of the piates and naintaining the group against vertical oi' horizontal displacenent within the cell.

In testinonywhereof I hereunto my signature.

FRANKPAUL DANNA. 

